4,322 Answered Questions for the topic College Algebra
College Algebra
04/21/20
if f(x)= 3x+1, and g(x) =7x, find f(g(-1))
04/21/20
log equations (thank you in advance)
Tritium has a half-life of 12 years. a. If an initial sample of 15 grams is present, find a function T(x) that represents the amount remaining, in grams, after x years. T(x) =...
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Determine how much is borrowed at each given rate
A city zoo borrows $2,000,000 at simple annual interest to construct a breeding facility. Some of the money is borrowed at 9%, some at 10%, and some at 13%. Use a system of linear equations to...
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College Algebra
04/21/20
What strategy are you using to get the graph of lines and quadratic functions?
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College Algebra
04/21/20
What are the simplest line and quadratic function you can imagine? In your day to day, is there any occurring fact that can be interpreted as lines and quadratic functions?
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population growth
The population P (in millions) of Georgia x years after 2000 can be modeled by P = 8e^0.023x. Solve this equation for xUse your equation to find x when P = 10. Interpret your answer.
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Solve the equation for x
Dissolving Salt If C grams of salt are added to a sample of water, the amount A of undissolved salt is modeled by A = Ca^x, where x is time. Solve the equation for x
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Compound Interest
What is the doubling time (when A = 2P) of an investment with an interest rate of 8% compounded continuously?
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04/20/20
Compound Interest
How much time does it take an investment of $1000 to grow to $8000 at a rate of 9.5%, compounded annually?
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College Algebra Math
04/20/20
Convert the equation f( t ) = 332 e ^− 0.23t to the form f ( t ) = ab^ t. a= b=
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College Algebra Math
04/19/20
Solve for x: 700 ( 1.1 ) ^x = 10 , 325 X=? (Give an exact answer, or a decimal approximation accurate to at least 3 decimal places).
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College Algebra Algebra
04/19/20
The remaining credit after 25 minutes of calls is 27.00 and the remaining credit after 59 minutes of calls is 22.92. What is the remaining credit after 64 minutes of calls?
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04/19/20
solve each system by graphing
solve each system by graphing1.) y=( -1/4x) - 4y = (5/4x) +22.) y= 2x+3y= -4x-3
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04/19/20
solve each system by substitution
solve each system by substitutionquestion 1.x + 8y = -157x +8y =-9question 2-5x - 7y =11 x - 2y= -9
Logarithmic functions
Given f(x) = 4(2)^x . a. Find f-1(x). Note: Your function should be a single logarithm so use the change of base formula if needed.b. First graph f(x) dotted and then use inverses to graph f-1(x)...
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College Algebra
04/18/20
Relate Logarithms and Exponents
If $500 is borrowed with an interest of 21.0% compounded monthly, what is the total amount of money needed to pay it back in 1 year? Round your answer to the nearest dollar. Do not round at any...
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College algebra! Please help!
A rectangular playing field lies in the interior of an elliptical track that is 30 yards wide and 240 yards long. What is the width of the rectangular playing field if the width is located 15 yards...
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College Algebra
04/17/20
what is the radius?
A can of beans has surface area 368368 cmsquared2. Its height is 1212 cm. What is the radius of the circular top? (Hint: The surface area consists of the circular top and bottom and a rectangle...
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College Algebra Math
04/17/20
The annual growth rate of the world's population in 2014 was k=1.1%. The population of the world in 2014 was 7,137,577,750. Letting t=0 represent 2014, use growth model to predict pop. In 2024
This question is over exponential growth
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04/16/20
write linear function
write linear function forX:| -16| - 8| 4| 12|f(x)| 42| 22| -8| -28(the | is supposed to be a table)thanks in advance!!!
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04/16/20
Find the equation of the line in slope-intercept form
Find the equation of the line in slope-intercept form that is parallel to the line 5x – 2y = 7 that passes through the point (-10, 4).
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04/16/20
find equation of line
Find the equation of the line in slope-intercept form that is perpendicular to the line 5x – 2y = 7 that passes through the point (-5, 3).
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Equation of Hyperbola — Help!!
Hi! please help me!Question:A light on a wall produces a shadow in the shape of a hyperbola. If the distance between the two vertices of the hyperbola is 10 inches and the distance between the two...
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how do i answer this question?
Write the cell notation for an electrochemical cell consisting of an anode where Zn(s) is oxidized to Zn2+(aq) and a cathode where Fe3+(aq) is reduced to Fe2+(aq) at a platinum electrode. Assume...
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